Osmanlis

Osmanlis, name given to the Ottomans, from that of their founder, Osman or Othman.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Osiris * Osmose
Orrery
Orsini, Felice
Orsova
Orviëto
Oscans
Oscar I.
Oscott
O'Shaughnessy, Arthur
Osiander, Andreas
Osiris
Osmanlis
Osmose
Osnabrück
Ossa
Ossian
Ostade, Adrian
Ostend
Ostia
Ostracism
Ostrogoths
Oswald, St.